In March and April 2025, we conducted a field campaign at the Nitzanim site along the southeastern Mediterranean coast to directly investigate submarine groundwater discharge (SGD) and its role in shaping coastal nutrient and carbon system dynamics. Our work included sampling boreholes penetrating the coastal aquifer to capture fresh and brackish groundwater signatures, as well as several days of intensive nearshore sampling on the beach. Using piezometers, we collected seawater and sediment porewater to resolve mixing processes at the land–sea interface.
These field efforts support our broader goal of characterizing SGD endmembers and, through combined nutrient, isotope (δ¹³C, δ¹⁵N, δ¹⁸O), and carbonate system analyses, quantifying how groundwater discharge delivers and transforms nitrogen and carbon in coastal zones with implications for marine ecosystems and global budgets.
